2021 GMC Sierra 3500 HD CC

See more, know more and do more with OnStar Vehicle Insights.™ Get real-time vehicle information that can help you improve route planning, identify select service needs before they become an issue, get driver behavior data and more. Plus, OnStar Vehicle Insights uses OnStar® embedded hardware so it’s available in most 2015 and newer GM vehicles and is waiting to be activated. It’s the simple way to gain real-time insights to help your business maximize operational efficiency and optimize productivity. Learn more about OnStar Vehicle Insights.

The 8" Diagonal GMC Infotainment System provides voice-activated, hands-free communication and entertainment, including the ability to: make and receive hands-free phone calls, access all of your phone contacts, enjoy wireless Bluetooth® streaming audio for music and most phones.

The all-new Allison 10-speed automatic transmission features closer gear spacing that allows the engine to operate in an optimal range at all times with varying load and terrain conditions. An available chain-driven Power Takeoff (PTO) feature is offered straight from the factory on the Allison transmission, so you can transfer power from the engine to aftermarket equipment, such as generator hydraulic pump.